Answer:
Each time a cell prepares to divide into 2 new cells, it must make a new copy of the DNA in its chromosomes. This process is not perfect, and errors can occur that may affect genes within the DNA. Cancers can be caused by DNA mutations (changes) that turn on oncogenes or turn off tumor suppressor genes.
Explanation:
The answers that apply are; B, D, & E
Plants take up carbon dioxide from the atmosphere and fix the molecules into organic compounds. This is why forests are recognized as significant carbon sinks because they sequester carbon from the atmosphere. Therefore, deforestation is a big contributor to an increase in atmospheric carbon dioxide. The other contributor to an increase of the greenhouse gas is rapid industrialization whereby industries emit carbon dioxide as a pollutant.
Explanation:
Between prokaryotes and eukaryotes, which type of cells are believed to have evolved first? Scientists have concluded that prokaryote life forms preceded the more complex eukaryotes. All organisms on Earth are classified into two basic cell types. Kary means nucleus.
Haploid cells! Hope this helps :)
